Séadhan specialises in providing his Irish students with a clear, fundamental understanding of Irish, and how the marking scheme is applied in state exams. His style of teaching is focused on covering the curriculum in a concise way, so all of his students have the tools to successfully manage the likely exam questions.
Séadhan has proven himself to be a very popular teacher due to his ability to stimulate students’ interest in the subject. He has worked with the State Examinations Commission correcting written exam papers and as an Oral Examiner for the Leaving Certificate. He has also taught in the Gaeltacht in Coláiste Ciarán and Coláise Ó Direáin. Séadhan has authored two Junior Certificate Irish textbooks.